Flue-wall facing



W. N. BLACKBURN.

FLUE WALL FACING.

APPLICATION FILED mac. 2a, 1921.

1,%36,"/, Patentedllov. 28,1922.

Patented Nov, 2%, i922.

ihll l fl STATES Parent ELITE-WALL FACING.

Application filed December 23, 1921. Serial No. 525,491.

T 0 all whom it may concern.

Be it known that I, WILLIAM N. BLACK- BURN, a citizen of the United States, residing at Drexel Hill, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Flueall F acings, of which the following is a specification, reference being had to the accompanying drawings.

Heretofore flue walls leading from the fireplace, particularly the sloping or inclined parts thereof are more or less rough, irregular, or caused to be formed with pockets, due to the arrangement of the ends of the brick work forming the chimney. When the flue walls are constructed of concreteor other material, they are more or less irregular or rough, and such construction especially when occurring on sloping or inclined parts of the fine, the smoke or products of combustion from the fireplace are more or less retarded.

It is, therefore, the purpose of the present invention to provide a metallic flue walllin ing, especially upon the sloping or inclined portions thereof, to provide smooth surfaces for the smoke or products of combustion, in order to prevent them from being retarded during their passage through the fiue.

Another purpose is to provide a flue wall facing or lining, which not only insures a smooth combustion, but also acts to support the material of the wall of the flue or chimney, and in so doing to obviate the rough or irregular surfaces.

Still another purpose is the provision of a flue wall facing or reinforcement in the form of a metallic plate having a marginal reinforcement flange, which acts to strengthen the plate and keep it from warping, and furthermore to assist the plate or line wall section in supporting the wall of the fine and the material constituting the wall, the marginal reinforcement also acting to reinforce the plate, while in position in the flue.

A still further purpose is the provision of a flue wall facing or lining including lateral lugs or projections embedded in the flue wall, to assistmaterially in holding theplate or facingin position against the flue wall.

. A further purpose embodies a flue wall facing including upwardly projecting lugs for engagement on the interior of the terra cotta flue lining, therebeing shoulders on the plate adjacent said retaining lugs, upon surface for the smoke or products of i which the lower edge of the terra cotta linmg engages, thereby supporting the terra cotta flue lining in position.

While the design and construction at present illustrated and set forth are deemed preferable, itis obvious that as a result of a reduction of the invention to a, more practical form for commercial purposes, the inventlon may be susceptible of changes, and the right to these changes is claimed, pro- Vided they are comprehended within the scope of what is claimed.

The invention comprises further features and combination of parts, as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure 1 is a view in front elevation of a fireplace, showing the base of the chimney broken away, to illustrate the flue walls, particularly the sloping or inclined portions thereof;

Figure 2 is a vertical sectional view on line2-2 of Figure 1, also showing the arrangement of the flue wall facing or lining;

Figure 3 is a detail perspective View of one of the flue wall linings or facings, illustrating-the smooth surface thereof;

Figure tisa detail erspective view of said flue wall facing or lining, showing the opposite side thereof, in order to illustrate the marginal reinforcement, the terra cotta supporting lugs, and the lateral lugs for the support ofthe plate; and

Figure 5 is a detail perspective view of a modified form of fine wall facing or lining, showing the lateral lugs dispensed with.

Referring to the drawings, 1. designates the chimney, 2 the fireplace, and. 3 the smoke flue, which leads or extends from the base of the chimney, and which is provided. at its lower portion ,with perpendicular side walls a, including the inclined or sloping walls 5. These sloping or inclined walls merge into the opposite walls of the perpendicular portion 6 of the fine. In fact the sloping 0r inclined walls are directly opposite each other, and heretofore their surfaces have been rough, irregular, dueto the arrangementof the bricks forming the wall.

Inorder to avoid the rough irregular surfaces ofthe inclined or sloping walls of the flue, flue facing. plates or linings 7 are arranged adjacent. the inclined or sloping walls of the flue. These plates may be constructed of any suitable material, such as cast iron or terra cotta, clay, or any other fire resisting material, preferably terra cotta. The facings or linings are shown as being constructed of metal, and it is obvious that should they be constructed of terra cotta, clay or the like, they will be made thicker, in order to withstand the strain of the wall, as well as the strain of the terra cotta portion of the flue portion 6.

The flue wall facing is provided with a marginal reinforcement 8, and projecting laterally from the opposite longitudinal edges thereof are lugs 9, which extend into the brick work of the chimney, for the purpose of supporting the flue wall facings. The lugs 9 are engaged in the wall, when the chimney is being constructed. While these lugs 9 are shown as being flat and angular in cross section, it is obvious that they may be constructed in any other suitable shape.

Projecting upwardly from the upper part of the flue wall facings'are lugs 10, which are arranged at obtuse angles to the plate. These lugs 10 engage on the interior of a terra cotta piping 11, which constitutes the upper part 6 of the flue. The outer face of the plate or flue wall facing immediately adjacent the lugs 10 is provided with lateral projecting lugs 12 causing shoulders 13 to be formed, upon which the lower end of the terra cotta piping 11 engages, thereby not only supporting the terra cotta piping 11, but also the plates act to support the material of the chimney.

The marginal reinforcement 8 is formed on the outer face of the plate or facing, while the inner face is smooth and unobstructed, so as to provide a smooth surface for the smoke or products of combustion in its passage through the flue. The

flue facings or linings are disposed a substantial distance above the frame 14: of the damper 15, so to allow the damper 15 to raise or open its full. distance. The damper 15 has a rack 16, which engages the frame 1 1, so as to hold the damper in different positions. In order to adjust the damper 15 the rack 16 is grasped by the hand of the operator, at the free extremity or end of the rack, and moved in order to disengage any of its teeth with the frame 14, so that any other of said teeth may be engaged with the edge of the opening of the frame. By th1s arrangement and operation the damper 15 may be disposed in different adjusted positions. However some suitable heat resisting material may be used in the hand of the operator to grasp the rack for the purpose of adjusting the damper even though the fireplace contains a fire.

1.11 Figure 5 the lateral lugs 9 are dispensed with, otherwise the construction of the flue wall facing is substantially the same.

In either case the flue wall facing or lining acts to support the terra cotta piping or lining of the perpendicular portion of the flue 6, and also the material of the chimney. The chimney may be constructed of any suitable material, such as brick, stone or concrete.

It will be noted that the flue wall lining or facing has no flange arranged through the front of the mantle, which reinforces the front and back Walls of the chimney.

After the fireplace and chimney has been constructed until it reaches an approximate height as indicated at r, Figure 1 the facing plates or linings 7 are disposed in positions so that their lower edges rest upon the brick work. Bolts 20 are then inserted in the openings or apertures 23, there being nuts 21 and 22 threaded upon the rods, adjacent the inner and outer faces of the plates or facings, to support the plates in position and holding them up until the wall is built up over the plates, in order that the lugs 9 may be used to support the plates. Before the wall is completed, the rods 20 may or may not be removed. However the illustrations in Figures 1 and 2 show the rods 20 remaining in position,

and it may be possible that the rods will tend to reinforce the plates, more so than if the rods were taken out.

Furthermore the lateral lugs have ample protection to withstand the entire side wall construction, without interfering with the front wall construction, which is the foundation upon which the present inven tion is based.

The invention having been set forth, what is claimed is 1. As an, article of manufacture, a fine wall facing, comprising a body to be arranged adjacent a flue wall, the upper part of the facing having projections engaging on the interior of a fiuewall piping, to not only support the same, but also acting to hold the facings in place, and means at the bases of said projections, upon which the lower end ofthe upper part of a flue piping rests, thereby supporting the flue piping and assisting in holding the facing in position.

2. As an article of manufacture, a flue wall facing, comprising a body to be arranged adjacent a flue wall, the upper part of the body having shoulders upon which a flue piping rests, thereby not only supporting the piping but also retaining the facing in position, the upper part of the facing also having projections engaging on the interior of the flue piping.

3. As an article of manufacture, a flue wall facing, comprising a body provided with a marginal reinforcement, said body being disposed in contact with the flue wall,

to protect the same, the inner face of the body being smooth, thereby avoiding the retardation of the products of combustion, the upper part of the body having means engageable with the lower edge of a flue piping, to support the piping in the flue, the upper part of the body also having projections engaging within and against the side walls of the flue piping.

4. As an article of manufacture, a flue wall facing, comprising a body provided with lateral lugs, adapted to project into the walls of a chimney, said body having adjoining shoulders for engagement with the lower edge of a flue piping, to support the piping, the upper part of the body also having proj ections engaging on the interior of the pip- As an article of manufacture, a flue wall facing, comprising a body provided with a marginal reinforcement, and having lateral lugs, extending into the wall of the chimney, to support the facing, to support the body, the upper part of the body having shoulders to be engaged by the lower edge of a flue piping, to not only support the piping but to hold the body in place, the upper part of the body also having projections engaging on the interior of the flue piping.

6. As an article of manufacture, a pair of opposite individually supported flue wall facings, each provided with means anchoring in the flue wall for retaining said facing in position, a flue piping in the flue above the facings, and means on the upper parts of the facings to support the flue piping.

7 In a device as indicated, the combination with a flue piping adapted to fit within a chimney, of individual insertable opposite flue wall faoings diverging downwardly and laterally from opposite portions of the piping and being anchored in corresponding opposite diverging faces of the chimney, and

means carried by the facings and protruding into the piping to support the piping in position.

In testimony whereof I hereunto aflix my signature.

WILLIALI N. BLACKBURN. 

